Not harmful to the environment.
Relating to ecology, the interrelationships of organisms and their environment.
Not contraband; not subject to forfeiture.
Free from guilt, sin, or immorality.
Not harmful; innocuous; harmless; benign.
Without wrongful intent; accidental or in good faith.
Naive; artless.
Lawful; permitted.
Bearing no legal responsibility for a wrongful act.
Lacking (something), or knowledge of it.
One who is innocent, especially a young child.